Coating Wire Rod

A coating rod is a tool used in laboratories to uniformly apply liquid samples onto substrates. Its principle involves controlling the coating thickness through grooves on the rod, allowing the liquid to form a smooth and even layer during the application process. It serves to simulate actual coating procedures and is used to test properties such as the leveling ability and coverage of coatings. Its applications span quality control and research and development testing in industries including paints, inks, and paper.
Selection
When selecting a coating applicator rod, it is essential to consider the groove specifications to match the coating thickness requirements. Materials such as stainless steel are suitable for routine samples, while the rod length should accommodate the width of the substrate. The surface smoothness of the rod influences coating uniformity. Additionally, industry standards such as ASTM methods should be referenced to ensure consistency in testing.

Terms

Standards

Instruments

Wet film thickness 22.9 microns, diaMeter 9.52 mm, the forming Rod uses an extrusion process to process continuous grooves, with no wire breakage and easy cleaning; the wire-wound Rod is based on the traditional principle, and there are differences in coating amount.

$ 167.00

Support bar and Drawdown blade double coating method, suitable for high, medium and low viscosity materials; coating speed 1~ 300mm/s stepless adjustable, Blade Coating accuracy +/- 3μm; equipped with innovative clamshell magnetic Drawdown blade and simple bar installation, easy to clean and load; Heating and Vacuum chuck function to improve Spreader mass.

$ 10562.00

The wire-wound structure enables coating with a 171.5-micron thick film, while the stainless steel material ensures corrosion resistance and long-term durability. The 9.52mm diaMeter Rod body, combined with 1.91mm steel wire, ensures operational stability.

$ 167.00

With bar and Drawdown blade two Spreader mode, using clamshell Drawdown blade head and new bar Installation method, easy to clean. Spreader speed and length can be freely adjusted, film thickness control accuracy is high, suitable for Glass, cardboard and other substrates.

$ 2978.00

Utilizing a dual coating method with wire rod and doctor blade, the coating speed is adjustable from 1 to 300 mm/s with stepless speed control, ensuring high precision in film thickness control. Equipped with vacuum adsorption and heating functions, the temperature uniformity reaches ±1°C. The flip-top design facilitates easy cleaning.

$ 24279.00

A wet film of 148.6 μm can be prepared using a wire-wound process with a 1.65 mm wire diaMeter, ensuring accurate and durable coating while preventing wire breakage issues.

$ 167.00

Adopting a wire-wound process, with a wet film thickness of 9.1 microns and a coating width of 300mm, it is suitable for ultra-thin coating requirements, offering high precision and ease of operation.

$ 167.00

Utilizing a wire-wound process, with a wet film thickness of 91.4 μm, a coating width of 300 mm, and durable stainless steel construction, the wire diaMeter of 1.02 mm ensures uniform coating, making it suitable for various surface treatments.

$ 167.00

Wet film thickness 68.6μm, coating width 300mm, pRoduced using a wire-wound process, with stainless steel material ensuring durability and precise coating performance.

$ 167.00

Using a wire-wound coating process, with a wet film thickness of 32.0 μm and a coating width of 300 mm, it is suitable for substrates prone to curling and convexity, enabling uniform wet film coating, with a wire diaMeter of 0.36 mm.

$ 167.00

A wet film of 100.6 microMeters was prepared using a wire-winding process, with a coating width of 300 mm. The film thickness was precisely controlled using a steel wire with a diaMeter of 1.12 mm, and the extrusion process eliminated the need for wire winding.

$ 167.00

The wire-wound process can pRoduce a wet film thickness of 96 μm with a coating width of up to 300 mm, utilizing stainless steel material to ensure durability and precise coating control.

$ 167.00

The wire-wound design allows for precise control of a 86.9-micron wet film thickness, utilizing durable stainless steel material, with a coating width of up to 300 milliMeters, making it suitable for high-precision coating preparation.

$ 167.00

Drawdown blade and bar two coating methods, support speed and length adjustment, high film thickness control accuracy, and with Vacuum chuck function, easy to handle soft substrate, easy to clean.

$ 7496.00

Wire-wound structure ensures 0.1 micron High Accuracy, wet film thickness 50.3 μm, stainless steel material is durable and easy to clean, and the wide-Rod Film Applicator achieves uniform coating.

$ 160.00

Articles

Key Points for Controlling Coating Longitudinal Uniformity with Manual Rod Coater Constant Speed Dragging Techniques
This article discusses how to control the longitudinal uniformity of the coating by dragging at a constant speed when using a manual wire rod coater. A constant-speed drag is crucial, as it directly determines the consistency of the wet film thickness.
Derivation and Validation of the Quantitative Relationship between Wire Diameter and Wet Film Thickness in Wire Wound Coating Bars
This paper investigates the relationship between the wire diameter in a wire-wound rod coater and the wet film thickness. Theoretically, under ideal conditions, the wet film thickness is approximately half of the wire diameter.
Actual Coating Thickness Deviation of Stainless Steel Wire Rod Coaters at Different Slurry Solid Contents
This article analyzes the actual coating thickness deviation of stainless steel wire rod coaters under different slurry solid contents. The study finds that the solid content of the slurry affects its viscosity and flowability, leading to deviations in the actual coating thickness from the theoretical value.
Coating film preparation techniques: comparison between wire-wound applicators and wet film preparators
This article compares two commonly used tools in laboratory coating film preparation: the wire rod coater and the wet film applicator.
The laboratory coating machine easily coats various aqueous and oily slurries.
The laboratory film applicator is a precision instrument used to prepare uniform coatings on substrates, primarily operating on the principle of a blade or wire-wound rod. It allows adjustment of parameters such as speed and pressure to control coating thickness.
How to achieve high uniformity in silver nanowire transparent conductive films through wire rod coating
This article introduces how to prepare uniform silver nanowire transparent conductive films using the wire rod coating technique. These films, which use silver nanowires as the conductive material, exhibit high transparency and conductivity, making them suitable for applications such as touch panels.
Common Troubleshooting for Wire Bar Coater: Solving Issues of Streaking and Uneven Thickness
This article mainly introduces solutions to two common faults in the operation of the wire rod coater—coating streaks and uneven coating thickness.
Blade Coating VS Wire Rod Coating: The Precision Battle and Selection Guide in the Lab
Blade coating and wire bar coating are two commonly used physical coating methods in laboratories. When selecting between them, factors such as material properties, target thickness, and experimental conditions must be considered. Both methods have their own advantages and can be flexibly chosen or used to validate each other based on specific requirements.
Application of Wire Bar Coater in the Preparation of Coating, Ink, and Printing Samples
A wire-wound rod coater is a laboratory tool used for preparing uniform wet film coatings on flat substrates, widely applied in the production of samples in the coatings, inks, and printing industries.
The working principle of laboratory wire rod coaters and methods for controlling coating thickness
The laboratory wire rod coater is a precision instrument used to prepare uniform, thickness-controllable wet film coatings on substrate surfaces. Its core components include a coating rod, a flat coating platform, clamps for securing the substrate, and a mechanical system that drives the coating rod to move at a constant speed.
The difference between a wire bar coater and a gap-type wet film applicator.
The wire-wound drawdown bar directly quantifies the coating through the gap between wires, making it suitable for thin coating preparation with high precision, particularly for low-viscosity fluids. In contrast, the gap-type wet film applicator indirectly controls film thickness through the groove depth, with the actual coating thickness significantly influenced by material properties, making it more suitable for high-viscosity coatings and thick film preparation.
The difference between a wire-wound rod coater and an extrusion coating rod
This article primarily compares the technical differences between wire-wound and extrusion coating rods. Although they are interchangeable in most scenarios, there are subtle variations in liquid loading capacity due to their distinct groove principles.
How to Prepare Precise Film Layers Using a Laboratory Film Coating Machine
Precise film preparation can effectively eliminate human operational errors by rationally selecting applicators (wire rods or blades) that match the material's rheological properties and precisely controlling coating speed, environmental temperature and humidity, and substrate conditions.
Huinou Laboratory Automatic Film Coater: Bringing Simplicity and Precision Back to Coating Experiments.
The Huiniao Experimental Automatic Coating Machine addresses common operational pain points in material R&D through features such as snap-on wire rods, flip-top magnetic scrapers, servo motor drives, and a high-flatness work surface. These designs enhance cleaning convenience, reduce maintenance costs, and improve coating stability.
Laboratory Coating Machine - A Scientific Tool for Preparing Precise Coatings
The laboratory film coater is a specialized device that prepares uniform coatings on substrates through mechanical means, primarily categorized into types such as blade coaters, wire bar coaters, and spin coaters. This equipment consists of precision components including a coating platform, a blade assembly, a transmission system, and a control system, allowing for precise control over coating thickness.